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Update Strategy Transformation
Why the input pipe lines to the joiner should not contain an update strategy transformation?


  
Total Answers and Comments: 1 Last Update: November 22, 2009     Asked by: anoopsharp 
  
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 Best Rated Answer
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Submitted by: nitijosh
 
Update Strategy flags each row for either Insert, Update, Delete or Reject. I think when you use it before Joiner, Joiner drops all the flagging details.

This is a curious question though, but I can not imagine how would one expect to deal with the scenario in which both the joiner transformation incoming pipelines have update strategy. In that scenario it would make it really complicated to join the rows flagged for different database operations (Update , Insert, Delete) and then decide which operation to perform. To avoid this I think Informatica prohibited Update Strategy Transformation to be used before Joiner transformation.

Above answer was rated as good by the following members:
pankaj84
November 21, 2009 22:51:44   
nitijosh Member Since: November 2009   Contribution: 3    
RE: Update Strategy Transformation
Update Strategy flags each row for either Insert Update Delete or Reject. I think when you use it before Joiner Joiner drops all the flagging details.

This is a curious question though but I can not imagine how would one expect to deal with the scenario in which both the joiner transformation incoming pipelines have update strategy. In that scenario it would make it really complicated to join the rows flagged for different database operations (Update Insert Delete) and then decide which operation to perform. To avoid this I think Informatica prohibited Update Strategy Transformation to be used before Joiner transformation.
 
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